Automatically adjustable expansible routing template



Jan. 22, 1957 E, GUERRANT 2,778,121

TING TEMPLATE AUTOMATICALLY ADJUSTABLE EXPANSIBLE ROU 2 Sheets-Sheet 1Filed June 25, 1953 E. L. GUERRAN T l) I I ar in IN 33 WW/ INVENTOR.

Jan. 22, 1957 E. L. GUERRANT 2,778,121 AUTOMATICALLY ADJUSTABLEEXPANSIBL Filed June 25. 1953 E ROUTING TEMPLATE 2 Sheets-Sheet 2 E. L.GUERRANT INVENTOR. BY W ATTORNEY AUTOMATICALLY ADJUSTABLE EXPANSIBLEROUTING TEMPLATE Edmonds L. Guerrant, Fort Worth, Tex., assignor toReady Hung Door Corporation, Fort Worth, Tex., a

corporation of Texas Application June 25, 1953, Serial No. 364,076 5Claims. (C1. 33-197) November 22, 1949.

An object of edges between the two routed surfaces.

A further object of the invention is to the routing operation, and

Figure 5 is a transverse section of after the installation in its closedposition.

the jamb and door of the hinges and showing the door The two end legs 11are provided with vertical supporting rods 19 having brackets side edgeof-the door 2l'which ,y secured to the outer upper 29 and are attachedto the its edge duringthe routing operation. The rods 19 are slidablymounted in ears 22 on the legs 11, and each rod includes an annularshoulder 23 for engaging the upper suitable means, such as the aircylinder 25 shown in Figure 1. Each air cylinder 25 is pivotallyconnected, as by means of a pivot pin 26 mounted on-the correspondingleg 11; and a connecting arm 27 is pivotally connected between thecylinder and one arm of the pair of arms 16 by means of another pin 28.

An expansible template assembly is secured to the outer lower'surface ofeach pair of hinged arms 16 as shown stationary plate 29 and a movplatesare provided with overlapping shouldered extensions 31 and 32 so astoprovide telescoping action therebetween. Thus, both plates 29 and 30provide a single upper plane between their supporting pair of arms 16.Rectangular projections 33 are corners of the stationary plate arms 16,as shown in Figure 1. Hook shaped locaters Openings 40 through theprojections 33 on the stationary plate 29 slidably receive the thedescribed assembly.

As shown in Figures 4 and 5 the desired relative dimen- Patented Jan.22, 1957,

between the ends thereof. are always constant, even though thedimensions and d may vary, the necessary clearance between the opposingedge surface of .the -;stop 43 23nd the opposing :surface of the.closeddoor;-21 ismaintained. While'the-dirnension e may vary, ;it .is pointedout that such variation ,does not afiecttheoperationof.the hinge 49.

.The -invention.is not limited to-the specific construction hereinshownandrdescribed, but maybemadein-many ways within the scopeof the appendedclaims.

What is claimed is:

.1. .An expansible :routing forming .a hinge. mortise in a template forsimultaneously door andadoor jamb when Since the dimensions a and b 2.In combination with an expansible routing template as defined in claim1, the construction wherein said plates comprising said templatearesecured to at least one hinged arm having its pivot located on oneside of said jamb and on the side thereof opposite said door.

3. In combination with an aexpansible routing template as defined inclairnZ means resiliently supporting said doorandnormallyurging-saiddoor toward said template.

4. In an expansihle routing template as defined in claim -1,-meanssecured to saidplates'for aligning the-same relative? to each otherduring their expanding and contracting moments, and means normallyurging said plates away 1 from each other. a

one face of thedooris positioned against oneedge :ofthe jarnb, and whenthe stop formingia-part of the latter is positioned away from the door,saidttemplate comprising a,pair of telescoping plates having arsinglerouting openingvformed .therebetween, at least ,one vprojecting ilocatersecured toone-of saidvplatesrandarranged to engage the outer edge orsaid door, means fixedly securing the last Said plate relative toisaiddoor, at least one projecting locater on therrernainingmovable plate andarranged .to engage the side of said stop adjacent said door, and meansmoving said iamb and the lastsaid locater toward said door andpositioning the latter against .its projecting locater.

5. Anexpansible routing template as definedin claim 1, wherein saidmeans-moving said jamb include means movahly applying a force againstsaid jamb stop on the side thereof opposite the locater contacting thelatter.

' Refei-en cesCitedvin the file of this patent v UNITED STATES PATENTS2355:1503 -ze'm Aug. 8, 1944 2,427;os1 'Zern Sept. 9, 1947 2,605,790Schwarzer Aug. 5, 1952 Zernv Aug. *5, 1952

